muter umter mtuer tmuer utmer tumer muetr umetr meutr emutr uemtr eumtr mteur tmeur metur emtur temur etmur utemr tuemr uetmr eutmr teumr etumr mutre umtre mture tmure utmre tumre murte umrte mrute rmute urmte rumte mtrue tmrue mrtue rmtue trmue rtmue utrme turme urtme rutme trume rtume muert umert meurt emurt uemrt eumrt muret umret mruet rmuet urmet rumet merut emrut mreut rmeut ermut remut uermt eurmt uremt ruemt erumt reumt mteru tmeru metru emtru temru etmru mtreu tmreu mrteu rmteu trmeu rtmeu mertu emrtu mretu rmetu ermtu remtu termu etrmu tremu rtemu ertmu retmu uterm tuerm uetrm eutrm teurm eturm utrem turem urtem rutem truem rtuem uertm eurtm uretm ruetm erutm reutm terum etrum treum rteum ertum retum
Note: these 'words' (valid or invalid) are all the permutations of the word muter. These words are obtained by scrambling the letters in muter.